/*
 * Copyright ConsenSys AG.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
package org.hyperledger.besu.ethereum.worldstate;

import org.hyperledger.besu.ethereum.core.Address;

import java.util.Optional;

import org.apache.tuweni.bytes.Bytes32;
import org.apache.tuweni.units.bigints.UInt256;

public interface WorldStatePreimageStorage {

  Optional<UInt256> getStorageTrieKeyPreimage(Bytes32 trieKey);

  Optional<Address> getAccountTrieKeyPreimage(Bytes32 trieKey);

  Updater updater();

  interface Updater {

    Updater putStorageTrieKeyPreimage(Bytes32 trieKey, UInt256 preimage);

    Updater putAccountTrieKeyPreimage(Bytes32 trieKey, Address preimage);

    void commit();

    void rollback();
  }
}
